基本上,我们可以看到php中所有有关shell的函数都被禁用了,但是禁用函数列表没有禁用putenv,因此我们可以使用LD_PRELOAD来突破disable_functions来执行系统命令。 LD_PRELOAD为我们提供了劫持系统函数的能力,但是前提是我们要控制php启动外部程序才行(只要有进程启动行为即可),我们常用的启动一个新进程的方法有mail,imap_op...
Platform: Multiple Published: 2006-03-10 Vulnerable App: --- Reverse Engineering with LD_PRELOAD Izik <izik@tty64.org> --- This paper is about the LD_PRELOAD feature, and how it can be useful for reverse engineering dynamically linked executables. This technique allows you to hijack funct...
基本上,我们可以看到php中所有有关shell的函数都被禁用了,但是禁用函数列表没有禁用putenv,因此我们可以使用LD_PRELOAD来突破disable_functions来执行系统命令。 LD_PRELOAD为我们提供了劫持系统函数的能力,但是前提是我们要控制php启动外部程序才行(只要有进程启动行为即可),我们常用的启动一个新进程的方法有mail,imap_op...
root@ubuntu-phablet:/lib# BIND_INTERFACE=ovpn LD_PRELOAD=bindToIntelibce.so curl ifconfig.me ERROR: ld.so: object 'bindToIntelibce.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored. "IP ADDRESS OUTPUT" root@ubuntu-phablet:/lib# BIND_INTERFACE=rmnet_data0 ...
LD_PRELOAD location for secure 64-bit applications. /usr/lib/64/ld.so.1 Default runtime linker for 64-bit applications. /usr/lib/64/0@0.so.1 Null character pointer compatibility library for the 64-bit applications. /var/ld/ld.config Default configuration file for 32-bit applications....
Could you confirm that you had an LD_PRELOAD set which forced the newer (Archlinux's) libstdc++ to be loaded, but not the newer libc? Contributor Ashvith10 commented Feb 9, 2024 @SomeoneSerge it fails in multiple ways. Before I go explaining the issues, I'll describe what this flake...
明示的な割り込みは、オブジェクトが LD_PRELOAD 環境変数を使用して読み込まれたときにも設定されます。オブジェクトの読み込み順序が原因で暗黙的な割り込みが発生することがありますが、この暗黙的な割り込みは実行時リンカーにとっては未知のものです。明示的な割り込みでは、オブジェクト...
数据访问限制、保留和静态加密是基本的安全控制。 本博客介绍了uber如何构建和利用开源 Apache Parquet™...
While investigating, I found aWorld::Tickfunction which exists for a lot of other objects.ClientWorld::Tickis executed multiple times a second andWorld::Tickis also called. Since this function doesn't seem to do much we can overwrite this safely. ...
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